This is prob a bit old now but i'll add my 2p worth. Jack was diagnosed at 6 weeks. This was after the "powers to be" had wrongly diagnosed him as a "difficult" baby and sent me off to learn how to settle my baby to sleep, which of course did nothing, seeing as though that wasn't the cause!

He was put on zantac and once he was able to roll over on his tummy and sleep in that position (about 6 months) he was okay-ish. Of course he is all over it now! Thankfully!!

Jo